SVG's are so fun! The amount of logic you can put into an SVG is absolutely wild given what they're generally used for. My desktop wallpaper uses embedded JS to create a random Barnsley fern fractal every time the system starts, so it's different every time. The only problem is that only browsers have the full SVG spec support I needed to get it to work correctly, but that's nothing that systemd and puppeteer can't fix.